MORGAN MASTROSTEFANO
NPI 1437089364
Nurse Practitioner - Acute Care in Menomonee Falls, WI
About Morgan Mastrostefano NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MORGAN MASTROSTEFANO (NPI 1437089364) is an individual acute care provider in Menomonee Falls, Wisconsin, licensed in Wisconsin (17695-33) and active in the NPI registry since May 2026. She is enrolled in Medicare PECOS, maintains a secondary practice location in West Bend, and is a graduate of University Of Wisconsin School Of Medicine (2025).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Morgan Mastrostefano is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Morgan Mastrostefano reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Menomonee Falls, WI 53051
- Reassigned Medicare billing, Wisconsin enrollment
- 2,294 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 53051 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MENOMONEE FALLS, WI 53051
MENOMONEE FALLS, WI 53051
MENOMONEE FALLS, WI 53051
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Morgan Mastrostefano's NPI number?
The NPI number for Morgan Mastrostefano is 1437089364. It was assigned to this individual provider in the NPPES registry on May 21, 2026.
Where is Morgan Mastrostefano located?
Morgan Mastrostefano practices at W180n8085 Town Hall Rd, Menomonee Falls, WI 53051. The listed phone number is (262) 251-1000.
What is Morgan Mastrostefano's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Acute Care, with taxonomy code 363LA2100X.
Is Morgan Mastrostefano enrolled in Medicare?
Yes. Morgan Mastrostefano is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Morgan Mastrostefano's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Morgan Mastrostefano reassigns Medicare benefits to Froedtert & the Medical College Of Wisconsin Community Physicians, Inc. (Menomonee Falls, WI). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Morgan Mastrostefano's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Morgan Mastrostefano was last updated on May 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Morgan Mastrostefano · NPI 1437089364
Acute Care physician in Menomonee Falls, Wisconsin. Individual provider, active in the CMS NPPES registry since May 21, 2026.
## Identity
- **NPI:** 1437089364 (Entity type: Individual)
- **Enumerated:** May 21, 2026
- **Primary specialty:** Nurse Practitioner - Acute Care · taxonomy 363LA2100X
- **State license:** 17695-33 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** W180N8085 TOWN HALL RD, Menomonee Falls, WI 53051-3518
- **Phone:** (262) 251-1000
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Froedtert & the Medical College Of Wisconsin Community Physicians, Inc. (NPI 1568787448, Menomonee Falls, WI), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Wisconsin School Of Medicine, class of 2025
## Record status
- **NPPES last updated:** May 21, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1437089364) · Data from the CMS NPPES public registry.